Liners Compatible for use in Littermaid Waste Receptacles Gulf Coast Pet Liners are for use over existing hard plastic receptacle (measurements of receptacle are approx. 12" x 5" x 5") 200 liners will last over a year (if changed 2 x per week will last 2 years) Round the corner of your hard receptacle before adding liner to prevent tearing Liners are MADE THIN to fit in receptacle properly, change when 2/3 full to prevent ripping Can add multiple liners with baking soda in between to help with odors. When 2/3 full, remove liner and the next one is ready to go.